ILOG CPLEX 11.0 Parameters Reference Manual > > Alphabetic List of Parameters > MIP zero-half cuts switch

C Name

CPX_PARAM_ZEROHALFCUTS

C++ Name

ZeroHalfCuts

Java Name

ZeroHalfCuts

.NET Name

ZeroHalfCuts

InteractiveOptimizer

mip cuts zerohalfcut

Identifier

2111

Description

Decides whether or not to generate zero-half cuts for the problem. The value 0 (zero), the default, specifies that the attempt to generate zero-half cuts should continue only if it seems to be helping.

If you find that too much time is spent generating zero-half cuts for your model, consider setting this parameter to -1 (minus one) to turn off zero-half cuts.

If the dual bound of your model does not make sufficient progress, consider setting this parameter to 2 to generate zero-half cuts more aggressively.

Values

Value 
Meaning 
-1 
Do not generate zero-half cuts 
Automatic: let CPLEX choose; default 
Generate zero-half cuts moderately 
Generate zero-half cuts aggressively